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    <title>Document</title>
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    <script type="module">
    //部分加载
    //    import {area,circumference} from './circle.js';
    //    console.log('圆的面积:'+area(4));
    //    console.log('圆周长:'+circumference(14));
    //整体加载
        // import * as circle from './circle.js';
        // console.log('圆的面积:'+circle.area(4));
        // console.log('圆周长:'+circle.circumference(14));

    //export default命令
    // import defaultName from './default.js';
    // console.log(defaultName);

    //export与import的复合写法
    // import {foo,bar} from './my_module.js';
    // foo();

    //继承模块
    import * as rectplus from './rectPlus.js';
    console.log(rectplus.area(3,5));
    console.log(rectplus.pi);

    import perim from './rectPlus.js';//rectplus模块默认方法
    console.log(perim(4,6));
    </script>
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